dye|World dye variety

Name:C.I.Mordant Blue 28,C.I.44535

Molecular Structure: triarylmethane class

C.I.Mordant Blue 28,C.I.44535,CAS 6837-67-8,638.46,C34H17Na3O9,Naphthochrome Azurine B

Molecular Formula:C₃₄H₁₇Na₃O₉

Molecular Weight: 638.46

CAS Registry Number:6837-67-8

Manufacturing Methods : Methane, tetrachloro – and 1-Hydroxy-2-naphthoic acid in the presence of copper in naoh aqueous solution reaction

Properties and Applications: brilliant blue to red light navy blue. Soluble in water for royal purple. In concentrated sulfuric acid for pure blue, purple precipitation after dilution.

List of Suppliers:

Naphthochrome Azurine B ( Ciba Specialty Chemicals Inc )